中文摘要：

本文从电力电子技术的立场，探讨风力发电、光伏发电、燃料电池发电对电力电子技术提出的要求，分析并指出了需要关注的技术难点和尚未解决的问题。

英文摘要：

From the standpoint of power electronics technology, this article investigate wind power, photovoltaic power generation, fuel cell power generation technology on power electronic request,analysis and points out some focus issues on the technical difficulties and unresolved issues.